Missing mod packs

[#YOLO]

Ok so I was getting many mod packs together probably over 40 when one time when I signed it it was all gone.I went to check the .technic folder to see the problem and all the packs where there,then I moved all the mod packs into a back up folder and copy and pasted it back to .technic, and I signed in again but now yogbox volts all the tekkits other than normal tekkit and hack/mine where all gone what happened can I fix it? Please help!